Routing Table Display Commands 149display ip routing-tableip_addressSyntaxdisplay ip routing-tableip_address [mask ] [ longer-match ] [verbose ]ViewAll viewsParametersip_address Enter the destination IP address.State Route state desription:ActiveU — The route is selected and is optimumBlackhole — Blackhole route is similar to Reject route, but it will notsend the ICMP unreachable message to the source endDelete — The route is deletedGateway — Identifies that the route is not an interface routeHidden — The route exists, but it is unavailable temporarily for somereasons (e.g., configured policy or interface is Down). Moreover, youdo not wish to delete it. Therefore, you need to hide it, so as torestore it again laterHolddown — Holddown is one kind of route redistribution policyadopted by some distance-vector (D-V) routing protocols (e.g., RIP),through which these routing protocols can avoid the flooding of errorroutes and deliver the routing unreachable message accurately. Forexample, the RIP redistributes a certain route every a period of timeregardless of whether the actually found routes destined for the samedestination change. For more details, refer to the specific routingprotocolsInt — The route is discovered by interior gateway protocol (IGP)NoAdvise — The routing protocol does not redistribute NoAdviseroute when it redistributes routes based on the policyNotInstall — The routing protocol generally selects the route with thehighest precedence from its routing table, then places it in its corerouting table and redistributes it. Although the NotInstall routecannot be placed in the core routing table, it is possibly that it isselected and redistributedReject — Unlike the normal routes, the Reject route will discard thepackets that select it as their route, and the router will send ICMPunreachable message to the source end. Reject route is usually usedfor the network testRetain — When the routes from the routing table are deleted, theroutes with Retain flag will not be deleted. Using this function you canset Retain flag for some static routes, so that they can exist in the corerouting tableStatic — The route with Static flag will not be cleared from therouting table after you save it and reboot the router. Generally, thestatic route configured manually in the router belongs to a StaticrouteUnicast — Unicast routeAge Time to liveCost Value of costTable 18 Output Description of the ip routing-table acl verbose CommandField Description
